Season 1 Episode 1Pilot Pilot episode of the American comedy, starring Frankie Muniz as the precocious youngster trying to cope with his siblings, unconventional parents and the fact that he has been placed in a class for gifted students

Season 1 Episode 2Red Dress Lois takes drastic steps to discover which of her sons ruined the dress she bought for her anniversary dinner, while Hal is left alone to wait for her at the restaurant. Comedy, starring Frankie Muniz, Jane Kaczmarek and Bryan Cranston

Season 1 Episode 3Home Alone 4 Lois and Hal leave the boys with Francis for the weekend while they attend a family wedding, telling him that if all goes well he may not have to return to military school. Comedy, starring Bryan Cranston, Jane Kaczmarek and Christopher Kennedy Masterson

Season 1 Episode 4Shame Hal gets into trouble for chopping down a tree, Malcolm feels guilty about beating up a seven-year-old and Francis sabotages Spangler's sex education lecture. American comedy, starring Frankie Muniz

Season 1 Episode 5Malcolm Babysits Malcolm spends all his time babysitting for the `ideal family' while his house is being fumigated, and the rest of the Wilkersons are forced to live in a caravan. Comedy, with Frankie Muniz and Jane Kaczmarek

Season 1 Episode 6Sleepover Malcolm loses Stevie's wheelchair during a sleepover, Francis is forced to undergo a bizarre series of initiation rituals at military school, and Reese tries to prove he is man enough to watch a horror movie. Starring Frankie Muniz and Jane Kaczmarek

Season 1 Episode 7Francis Escapes Francis runs away from military school and returns home to see his girlfriend - but she turns out to be a thief who does not seem interested in him after all. While he takes refuge in the backyard, Malcolm is faced with the task of covering for his errant brother. Christopher Kennedy Masterson and Frankie Muniz star

Season 1 Episode 8Krelboyne Picnic The whole family attends a school picnic, and Malcolm is convinced he will be ridiculed by his classmates after being forced to perform in the Academic Circus event

Season 1 Episode 9Lois v Evil Francis is delighted to hear his new assignment is as a guard at a beauty pageant, and Lois's unexpected sacking from the grocery store leaves the family facing poverty

Season 1 Episode 10Stock Car Races Hal takes the boys out of school and along to the stock car races, while Lois turns the house upside down in a desperate search for her missing pay cheque

Season 1 Episode 11Funeral Malcolm misses his aunt's funeral in favour of a date, who surprises him by arriving early and catching him half-dressed. Comedy, starring Frankie Muniz

Season 1 Episode 13Rollerskates Malcolm suffers his father's roller-skating lessons and Lois is put out of action by a back injury. American comedy, starring Frankie Muniz, Jane Kaczmarek and Bryan Cranston

Season 1 Episode 14The Bots and the Bees Malcolm and his brothers decide to build a robot while Lois is out of town visiting Francis, only for Hal to take over the project

Season 1 Episode 15Smunday Malcolm and his brothers take advantage of Lois's illness by convincing her it is Sunday so they can skip school, while Hal goes in search of a sports car. Frankie Muniz stars

Season 1 Episode 16Water Park Malcolm and Reese fight it out at a water park, Spangler challenges Francis to an unusual variation of pool, and Dewey spends the day with a peculiar babysitter. Comedy, starring Frankie Muniz and Justin Berfield

Season 2 Episode 1Traffic Jam Malcolm finally meets his match in the form of an intriguing girl, and Reese attempts to break into an ice-cream truck. Meanwhile, Francis makes a bold bet at military camp and Dewey wanders off into the countryside. Frankie Muniz stars

Season 2 Episode 2Halloween Approximately Malcolm and his brothers set about creating the ultimate stealth weapon with a little help from Francis, who is on leave from the military academy. Lois and Hal tackle a dangerous driver who has been terrorising the neighbourhood by building their own speed bump

Season 2 Episode 3Lois's Birthday Lois runs away from home after the boys ruin her birthday, and it proves difficult to persuade her to return. Offbeat comedy, starring Frankie Muniz and Jane Kaczmarek

Season 2 Episode 4Dinner Out Hal, Lois and the boys have an uncomfortable dinner at the Kenarban home, while Francis regrets inviting local girls to a party at Marlin Academy. Comedy, starring Bryan Cranston, Jane Kaczmarek and Christopher Kennedy Masterson

Season 2 Episode 5Casino Hal is banned from gambling at a casino during a family holiday and instead takes Malcolm and Reese on a disastrous trek in the desert. Meanwhile, Francis sneaks home from the military academy, only to find nobody there. Comedy, starring Frankie Muniz, Justin Berfield and Bryan Cranston

Season 2 Episode 6Convention Reese and Malcolm compete with Dewey for the attention of their attractive new babysitter, and an old rival brings out Hal's fighting instincts - much to the amusement of Lois. Comedy, starring Frankie Muniz, Bryan Cranston and Jane Kaczmarek

Season 2 Episode 7Robbery Lois and Craig are taken hostage by armed thieves intent on robbing the Lucky Aide store. Francis tries to help a heartbroken friend at the academy, and Hal inadvertently infests the family home with bats. Comedy, starring Jane Kaczmarek

Season 2 Episode 8Therapy Malcolm attends therapy sessions in a bid to get out of schoolwork - and Reese decides it would be a good idea to join him. Meanwhile, Hal and Lois try to clean out a cupboard stuffed with junk. Comedy, starring Frankie Muniz and Jane Kaczmarek

Season 2 Episode 9High School Play Hal and Dewey build their own private Utopia from plastic blocks. Malcolm lands the lead role in the high-school play, but lets his new-found celebrity status go to his head. Comedy, starring Frankie Muniz and Bryan Cranston

Season 2 Episode 10The Bully Reese relinquishes his position as school bully, but Malcolm soon suffers at the hands of his successors. Meanwhile, Francis dreads his approaching birthday, fearing the traditional pranks played at Marlin Academy on such occasions. Comedy, starring Frankie Muniz and Justin Berfield

Season 2 Episode 11Old Mrs Old Dewey swaps his backpack for a handbag, Malcolm finds himself in hot water with an elderly neighbour, and Francis's lazy friend enrols at the academy. Comedy, starring Frankie Muniz

Season 2 Episode 12Krelboyne Girl Francis tries to avoid punishment for his latest prank, Dewey overreacts to Lois's lecture and Malcolm finds his first crush is a confusing mixture of love and hate. Comedy, starring Frankie Muniz, Erik Per Sullivan and Christopher Kennedy Masterson

Season 2 Episode 13New Neighbours Unpleasant new neighbours move in next door to the Wilkersons but Hal insists on making friends with them. Meanwhile, the Marlin Academy cadets prepare for a visit from Oliver North. Comedy, guest starring Dakota Fanning, with Frankie Muniz, Bryan Cranston and Jane Kaczmarek

Season 2 Episode 14Hal Quits Hal decides to quit his job to become an artist and Francis wades through a week's worth of inventory work at Lucky Aide, prompting Malcolm to ponder his own future

Season 2 Episode 15The Grandparents Lois's disapproving parents come to stay and make a generous offer - before going back on the deal at the last moment. Meanwhile, Francis gets struck down by food poisoning at Mardi Gras. Family comedy, guest starring Cloris Leachman and Robert Loggia, with Frankie Muniz, Jane Kaczmarek and Justin Berfield

Season 2 Episode 16Traffic Ticket Lois disputes an accusation of reckless driving and orders Francis to pay the $750 in motoring fines she claims he has accumulated in her name. He stages a stunt for the amusement of the other cadets in a bid to raise the money, while Malcolm discovers his mother was wrong to shift blame for the ticket. Comedy, with Bryan Cranston and Jane Kaczmarek

Season 2 Episode 17Surgery Malcolm goes into hospital to have an operation for suspected appendicitis, while Francis stages a hunger strike at Marlin Academy. Comedy, starring Frankie Muniz and Christopher Kennedy Masterson

Season 2 Episode 18Reese Cooks Reese discovers he has a natural flair for cooking, Malcolm urges his classmate to call off a planned party and Francis is forced to write a term paper. Comedy, starring Frankie Muniz and Justin Berfield

Season 2 Episode 19Tutoring Reese Malcolm tutors Reese to help his brother improve his grades at school, and Francis is banished to a friend's house for defying Lois's order to patch the roof. Comedy, starring Frankie Muniz and Jane Kaczmarek

Season 2 Episode 20Bowling Malcolm and Reese go to a bowling party, but end up concentrating more on trying to attract the attention of a cute girl than making the perfect score. Comedy, starring Frankie Muniz and Justin Berfield

Season 2 Episode 21Malcolm v Reese Francis sets up a contest between Malcolm and Reese to win a coveted wrestling match ticket, and Dewey loses Craig's cat while its owner is away at a comic-book convention. Quirky comedy, starring Frankie Muniz and Jane Kaczmarek

Season 2 Episode 22Mini-Bike Hal and Francis attend an enlightening father-and-son weekend at the military academy, while the younger boys put pressure on Lois in their quest to own mini-bikes

Season 2 Episode 23Carnival Reese, Dewey, Stevie and Malcolm sneak out to the county fair, but a drunken, belligerent security guard locks them inside the grounds at closing time. Comedy, starring Frankie Muniz and Justin Berfield

Season 2 Episode 24Evacuation Hal accidentally causes a toxic chemical spill that forces the entire neighbourhood to be evacuated. Even within the confines of an emergency bunker, Malcolm has to deal with the eternal problem of being grounded

Season 2 Episode 25Flashback Lois has a pregnancy scare that sparks tension in the household and reminds her and Hal how much their lives have been affected by their children.

Season 3 Episode 1Houseboat Malcolm and Stevie's families take a houseboat holiday together, but nothing seems to go to plan. Dewey is left hanging for hours on a rope swing and a friendly game of Scrabble turns into a slanging match. Meanwhile, Francis decides to quit school so he can head off to Alaska and earn a fortune on an oil rig

Season 3 Episode 2Emancipation Francis encourages Lois to let him come home following his self-emancipation, while Malcolm and the Krelboynes do battle with a difficult new teacher. Family comedy, starring Bryan Cranston, Christopher Kennedy Masterson and Jane Kaczmarek

Season 3 Episode 3Book Club Lois joins a book club to escape the stresses of her home life. Meanwhile, Hal frets about how to make the boys behave in her absence, and Francis hitch-hikes through Canada. Comedy, starring Frankie Muniz, Bryan Cranston and Jane Kaczmarek

Season 3 Episode 4Malcolm's Girlfriend Malcolm's schoolwork suffers when he gets a girlfriend, and Francis takes refuge with a crazed bomber in a remote Canadian cabin. Offbeat comedy, starring Frankie Muniz, Christopher Masterson and Jane Kaczmarek

Season 3 Episode 5Charity Malcolm and his brothers gain personal profit from doing charity work for the church and Francis discovers what life is like in a logging camp. Family comedy, starring Frankie Muniz

Season 3 Episode 6Health Scare Dewey looks after the class hamster, while Malcolm and Reese plot an escape from their bedroom. Francis is challenged to a fight and Hal discovers a lump during a medical check-up. Comedy, starring Bryan Cranston and Erik Per Sullivan

Season 3 Episode 7Christmas Lois withholds the boys' Christmas presents after they destroy the ornaments on the tree, while Francis is forced to spend the festive season with his grandmother (Cloris Leachman). Starring Frankie Muniz and Jane Kaczmarek

Season 3 Episode 8Poker Hal and Abe fall out over a poker game, Francis is trapped in a remote cabin during a blizzard and Reese trips the light fantastic at a dance class. Family comedy, starring Bryan Cranston and Justin Berfield

Season 3 Episode 9Reese's Job Reese takes a job in a fast-food restaurant to make ends meet, but his new boss accuses him of stealing. Malcolm meets his match at school, and Dewey has to prove he can keep a goldfish before he gets the chance to own a puppy. Comedy, starring Frankie Muniz and Justin Berfield

Season 3 Episode 10Lois's Makeover Lois's workmates decide she needs a makeover - resulting in unexpected attention from Hal. Meanwhile, Francis learns the art of rat-catching and Hal plays basketball against the boys, but fakes an injury when he discovers how good they are. Quirky comedy, starring Jane Kaczmarek and Bryan Cranston

Season 3 Episode 11Company Picnic - Part One Part one of two. The works picnic proves tricky for the whole family as Hal tries to avoid his new boss, a girl ties Malcolm in knots, and Lois clashes with an obnoxious woman. Quirky comedy, guest starring a host of celebrities including Susan Sarandon, Magic Johnson, Heidi Klum and Christina Ricci

Season 3 Episode 12Company Picnic - Part Two Part two of two. The company picnic causes chaos for the family as Malcolm humiliates himself further and Hal cannot face admitting his real identity to his boss. Meanwhile, Francis regrets his bet against the loggers' hockey team and Reese bonds with his scavenger-hunt partner. Guest starring Susan Sarandon

Season 3 Episode 13Reese Drives Reese's first driving lesson takes a dangerous turn, while Francis haggles his way out of debt. Offbeat comedy, starring Justin Berfield and Christopher Kennedy Masterson

Season 3 Episode 15Hal's Birthday Francis brings his new wife home, while the rest of the boys get fed up with Lois shouting at them and decide to fly the nest. Comedy, starring Christopher Kennedy Masterson and Jane Kaczmarek

Season 3 Episode 16Hal Coaches Dewey is appalled when Hal takes over as coach of the soccer team, while Malcolm gets more than he bargained for when he writes a computer program to act out the lives of his family. Reese tries to blackmail his neighbour Ed and things get heated during an ice-fishing trip

Season 3 Episode 17Dewey's Dog Hal and Lois battle illness to keep a romantic rendezvous and Dewey brings a dog home - but cannot find anywhere to hide it. Family comedy, starring Bryan Cranston, Jane Kaczmarek and Erik Per Sullivan

Season 3 Episode 18Poker II Hal hosts a poker night and the boys take it upon themselves to entertain a player's daughter, but Malcolm discovers one guest is carrying a gun in her bag. Family comedy, starring Frankie Muniz and Bryan Cranston

Season 3 Episode 19Clip Show The family car is damaged, but the boys refuse to admit responsibility - making Hal so exasperated that he forces them to see a psychiatrist. Comedy, starring Bryan Cranston and Frankie Muniz

Season 3 Episode 20Jury Duty Reese and Malcolm spend a day exploring a storm drain with Dewey and Stevie, and Lois is called up for jury service. Meanwhile, Francis gets trapped by a bear during an ice-fishing trip with friends. Comedy, starring Frankie Muniz

Season 3 Episode 21Cliques The Krelboyne whizz-kids are forced to integrate with the posers, goths and other school cliques. Hal and Reese race to knock down an elaborate domino arrangement set up by Dewey, while Francis tries to find out how Piama persuaded Lavernia to be nice to him. Family comedy, starring Bryan Cranston and Justin Berfield

Season 3 Episode 22Monkey While Craig is ill in bed, his new helper monkey turns vicious and Reese tries to take control of law enforcement for his neighbourhood after apprehending an intruder. Francis and Piama are forced to leave Alaska.

Season 4 Episode 1Zoo Chaos ensues on a family trip to the zoo. Hal becomes jealous of Lois's ex-boyfriend, Malcolm and Dewey get trapped in a tiger pen and Reese locks horns with a goat. Comedy, starring Frankie Muniz and Jane Kaczmarek

Season 4 Episode 2Humilithon Malcolm suffers extreme humiliation in his first week as a high-school freshman. Francis surprises everyone by acting more responsibly at work and Dewey revels in being a latchkey kid. Comedy, starring Frankie Muniz and Christopher Kennedy Masterson

Season 4 Episode 3Family Reunion Lois finds herself repeatedly insulted at a family reunion, so the children plot revenge. Meanwhile, Hal is prompted to stand up to his father. Guest starring Christopher Lloyd (Back to the Future), with Frankie Muniz and Jane Kaczmarek

Season 4 Episode 4Stupid Girl Hal hires a steamroller and becomes obsessed with crushing things, while Malcolm feigns being dim to attract the attention of a non-intellectual girl. Comedy, starring Frankie Muniz and Jane Kaczmarek

Season 4 Episode 5Forwards Backwards Malcolm is grounded on his birthday once again when his vengeful battle with Reese gets out of hand. Hal sets out to buy a comic for his son, but has an unfortunate run-in with two unhelpful shop assistants. Comedy, starring Bryan Cranston, Frankie Muniz and Justin Berfield

Season 4 Episode 6Forbidden Girlfriend Malcolm secretly dates a girl he is tutoring, but her father dislikes him. Francis becomes chief mediator in a dispute between Otto and his cowboy neighbours, and Dewey encounters a boy who is his spitting image - a situation he and Reese decide to exploit. Starring Frankie Muniz and Erik Per Sullivan

Season 4 Episode 7Malcolm Holds His Tongue Reese ventures out with his girlfriend, but makes the mistake of taking Craig along. Malcolm tries to be diplomatic - only to end up needing medical assistance. Family comedy, starring Frankie Muniz and Justin Berfield

Season 4 Episode 8Boys at the Ranch Hal and the boys visit Francis at the ranch, where they assume plenty of mischief will be planned. However, on arrival they are disappointed to discover he is now a responsible grown-up. Comedy, starring Frankie Muniz and Bryan Cranston

Season 4 Episode 10If Boys Were Girls Exasperated with her unruly boys, a pregnant Lois dreams of what life would be like if she had daughters instead. However, it turns out that the imaginary Mallory, Renee and Daisy would be even more of a handful than her sons. Comedy, starring Frankie Muniz and Jane Kaczmarek, with Jennette McCurdy

Season 4 Episode 11Long Drive Reese goes to prison for the day, and Francis is unnerved by a calamity on the ranch. Meanwhile, Malcolm feels uncomfortable when Lois insists on giving him a lecture about sex. Family comedy, starring Frankie Muniz and Jane Kaczmarek

Season 4 Episode 12Kicked Out Hal reaches the end of his tether over Malcolm's misbehaviour and throws him out of the house - but Reese takes advantage of the situation to play a dirty trick of his own. Family comedy, starring Frankie Muniz and Bryan Cranston

Season 4 Episode 13Stereo Store Hal takes a job in a music shop but finds it hard to stay abreast of the younger generation's latest trends, while a new babysitter gives the boys a run for their money. Family comedy, starring Frankie Muniz and Bryan Cranston

Season 4 Episode 14Hal's Friend Hal makes the most of Lois's absence by inviting round a wild old school buddy - but soon regrets it. Malcolm tries to liberate Dabney from his domineering mother, and Francis spends a night in the company of Otto. Family comedy, starring Frankie Muniz and Bryan Cranston

Season 4 Episode 15Garage Sale Lois puts Reese in charge of the family garage sale, and Hal rediscovers his anarchic side when he starts broadcasting on his pirate radio station under the name Kid Charlemagne. Comedy, starring Frankie Muniz and Jane Kaczmarek

Season 4 Episode 16Academic Octathlon Reese resorts to desperate measures to avoid attending a dance. Hal tries to get Dewey to admit he loves him, and Malcolm is infuriated by the eagerness of his team-mates in an academic contest. Starring Frankie Muniz and Bryan Cranston

Season 4 Episode 17Clip Show 2 Hal and Lois reminisce about the boys' most memorable adventures and misfortunes over the years, as they prepare to make a will. Family comedy, starring Frankie Muniz, Jane Kaczmarek and Bryan Cranston

Season 4 Episode 18Reese's Party Reese throws a party at home while Hal and Lois are off enjoying a romantic break, but Francis's delinquent friends spoil the fun by gatecrashing the shindig and taking the boys hostage. Family comedy, starring Frankie Muniz and Jane Kaczmarek

Season 4 Episode 19Future Malcolm Malcolm meets a chess-playing layabout who could be an older version of himself, Lois cannot understand why she is putting on weight and Francis objects to Piama posing nude in an art class - but eagerly volunteers himself when he finds out how much the job pays. Guest starring Jason Alexander (Seinfeld)

Season 4 Episode 20Baby - Part One Part one of two. Lois goes into labour, coinciding with a less inspiring surprise in the form of a visit from Grandma Ida (Cloris Leachman). Family comedy, with Frankie Muniz and Jane Kaczmarek

Season 4 Episode 21Baby - Part Two Part two of two. Hal hurries home to be with Lois during her labour, but in his panic he crashes the car. Comedy, starring Bryan Cranston, Jane Kaczmarek, Frankie Muniz and Cloris Leachman

Season 4 Episode 22Day Care Hal and Lois try to organise suitable day care for the new arrival and find their best option is at a nearby church. Meanwhile, Francis takes advantage of recent reports of UFOs in the area.

Season 5 Episode 1Vegas The Wilkersons travel to Las Vegas, where Hal is bitten by the gambling bug and bets his life insurance policy, and Lois sees her favourite singer at a show. Guest starring David Cassidy

Season 5 Episode 2Watching the Baby Dewey makes up an incredible story to entertain the baby, and Hal goes out to buy nappies while Lois is asleep - only to find himself accused of being a shoplifter

Season 5 Episode 3Goodbye Kitty Stevie ends up in shock when he learns the truth about Kitty and Abe's divorce, while Dewey tries to get more attention from the family by eating baby food. Comedy, starring Frankie Muniz and Erik Per Sullivan

Season 5 Episode 4Thanksgiving Malcolm goes off to a boozy Thanksgiving party, where he meets a good-looking girl who seems intent on flirting with him. Reese is left to prepare the dinner with Hal and Dewey roped in as his assistants, while Francis and Piama arrive at the house almost ready to divorce

Season 5 Episode 5Malcolm Films Reese Malcolm uses Reese as the subject of his school experiment, and Francis struggles to keep his poise when he falls victim to a nasty reviewer. Dewey starts performing as a street entertainer to earn extra cash. Family comedy, starring Frankie Muniz, Justin Berfield and Christopher Masterson

Season 5 Episode 6Malcolm's Job Malcolm discovers the awful secret Lois has been hiding, while Hal's father-and-child classes become more interesting once he starts betting on babies. Dewey runs away to be with Francis after growing tired of the rest of the family. Comedy, starring Frankie Muniz and Jane Kaczmarek

Season 5 Episode 7Christmas Trees Hal and the boys enter the season of goodwill in a competitive spirit when the local church starts to undercut them on Christmas tree prices. Meanwhile, Otto's bickering relatives arrive, giving Francis a taste of home. Comedy, starring Frankie Muniz and Bryan Cranston

Season 5 Episode 8Block Party The Wilkersons come home early from holiday to discover the neighbours are in the middle of a street party celebrating their absence - prompting them to go on a charm offensive to win over the locals. Starring Frankie Muniz, Bryan Cranston and Jane Kaczmarek

Season 5 Episode 9Dirty Magazine Malcolm is made editor of the school's literary magazine, but finds himself forced to censor a story. Hal tries to ingratiate himself with the woman in the office responsible for cutbacks, while Francis teaches Otto to dance. Comedy, starring Frankie Muniz and Bryan Cranston

Season 5 Episode 10Hot Tub Hal splashes out on a new hot tub. Malcolm gets involved in a dispute with Polly's former boyfriend, and Otto confronts one of Francis's old enemies. Family comedy, guest starring Julie Hagerty (Airplane!) and Kenneth Mars (The Producers)

Season 5 Episode 11Ida's Boyfriend Grandma Ida (Cloris Leachman) announces she is getting married to a rich Chinese man she met on a cruise - but the family is not convinced her intentions toward her fiance are honourable. Meanwhile, Malcolm tries to hide his tongue piercing from his parents

Season 5 Episode 12Softball Malcolm joins the Lucky Aide softball team, unaware Lois is the coach. Reese tries to beat Francis's record of collecting toilet seats from a junkyard, while Hal mistakenly applies to join the CIA. Starring Frankie Muniz and Jane Kaczmarek

Season 5 Episode 13Lois's Sister Lois's younger sister Susan lavishes expensive gifts on the children during a visit, but everyone is mystified as to the reason for her generosity - until she announces she needs a kidney transplant. Comedy, guest starring Laurie Metcalf (Roseanne)

Season 5 Episode 14Malcolm Dates a Family Lois boycotts her local pizza restaurant after discovering its management enforces a 15 per cent surcharge. Malcolm meets a pretty girl but gets on better with her family, while Otto suggests Francis should hire an assistant. Guest starring Sara Paxton (The Last House on the Left) and Kenneth Mars (The Producers)

Season 5 Episode 15Reese's Apartment Reese rents an apartment after being thrown out of the family home - but finds it difficult to avoid debt. Malcolm helps a football player write an essay to get him into college. However, when the sportsman turns out to be even more stupid than he thought, he is faced with a dilemma. Frankie Muniz stars

Season 5 Episode 16Malcolm Visits College Lois accompanies Malcolm on a visit to his new college - and insists on seeing his dormitory. Dewey starts stealing items from around the house to get his own back on Hal, and Reese has an unfortunate encounter with an undercover police officer. Frankie Muniz and Jane Kaczmarek star

Season 5 Episode 17Polly in the Middle Polly cannot choose between Abe or Craig, and decides to date them both, while Malcolm refuses to believe in the power of Dewey's supposedly lucky shirt. Elsewhere, the ranch hands make fun of Francis, and Lois takes the kids to a baseball convention

Season 5 Episode 18Dewey's Special Class Malcolm tries to stop his little brother going to a school for the gifted, but the devious plan backfires in spectacular fashion - leaving Dewey labelled emotionally disturbed. Comedy, starring Frankie Muniz and Erik Per Sullivan

Season 5 Episode 19Experiment Reese inadvertently completes Malcolm's science experiment, but has no idea how he did it. Dewey comes up with a novel way of selling chocolate bars to raise money for the school. Family comedy, starring Frankie Muniz, Justin Berfield, Erik Per Sullivan and Bryan Cranston, who also directs

Season 5 Episode 20Victor's Other Family Lois resolves to go to Canada to meet her father's second wife, but soon regrets her decision. Meanwhile, Hal foolishly demands Dewey run in a father-son race with him, despite being temporarily blind. Comedy, starring Bryan Cranston and jane Kaczmarek

Season 5 Episode 21Reese Joins the Army - Part One Part one of two. Reese's girlfriend dumps him, his father is placed under house arrest and his mother refuses to come out of the bathroom - so he decides the only way to salvage the situation is to join the army. Comedy, starring Justin Berfield and Bryan Cranston

Season 5 Episode 22Reese Joins the Army - Part Two Part two of two. Reese continues to work hard in the army, but finds himself facing a difficult decision. Meanwhile, Malcolm tries to prove his father's innocence, and realises the alleged crimes all happened on a Friday - when Hal is off work

Season 6 Episode 1Reese Comes Home Reese begins his military career by parachuting into Afghanistan, but immediately decides life in the army is not for him - and deserts disguised as a local woman. Lois flies east on a rescue mission after hearing the news, while Malcolm commits a random act of destruction in honour of his brother

Season 6 Episode 2Buseys Run Away Dewey quits his special-needs class, and soon after he leaves the Buseys disappear - only for him to discover his former classmates hiding in the trees around his home. Meanwhile, Hal falls in with a group of bodybuilders who are impressed by his intelligence. Starring Erik Per Sullivan and Bryan Cranston

Season 6 Episode 3Standee Hal turns to Reese for help to resolve an altercation with the binmen. Meanwhile, Lois gets her job back at Lucky Aide, but is only re-employed on probation, and has a disagreement with Malcolm over her right to take down what she thinks is a racially offensive sign

Season 6 Episode 4Pearl Harbour Tired of the neighbours constantly outdoing his Christmas decorations, Hal makes up a holiday of his own - Pearl Harbour Day. Meanwhile, Malcolm and Reese are each tricked into believing the other is gay. Comedy, starring Bryan Cranston and Frankie Muniz

Season 6 Episode 5Kitty's Back Kitty Kenarban returns and asks Lois for help in winning back her estranged husband Abe. Francis comes home and puts Dewey through a humiliating initiation. Comedy, starring Jane Kaczmarek, Merrin Dungey and Erik Per Sullivan

Season 6 Episode 6Hal's Christmas Gift Hal misleads Lois and the kids about the wonderful Christmas gift he is going to give them, and finally resorts to stealing Malcolm's credit card to splash out on something special. Comedy, starring Frankie Muniz, Bryan Cranston and Jane Kaczmarek

Season 6 Episode 7Hal Sleepwalks One of Dewey's plans is foiled thanks to a bout of Tourette's syndrome. Meanwhile, Reese takes advantage of his discovery that Hal becomes highly suggestible whenever he starts sleepwalking. Family comedy, starring Justin Berfield, Erik Per Sullivan and Bryan Cranston

Season 6 Episode 8Lois Battles Jamie Baby Jamie knocks over a shelf and nearly crushes Lois. She concludes that the infant is out to get her and decides to bring Francis home to remind herself how she conquered him when he was little

Season 6 Episode 9Malcolm's Car Malcolm uses the profits from his illegal gambling to buy an old car, but soon finds the vehicle is taking over his life, while Hal discovers he has a talent for hairstyling. Family comedy, starring Frankie Muniz and Bryan Cranston

Season 6 Episode 10Billboard Lois is furious to catch the boys ogling a poster of a stripper, but Malcolm convinces her they are genuinely concerned about the exploitation of women, prompting the family to instigate a full-scale protest. Starring Frankie Muniz and Jane Kaczmarek

Season 6 Episode 11Dewey's Opera Dewey is moved to tears by an opera on TV, and decides to write his own masterpiece based on his parents' arguments over their new bed. Family comedy, starring Frankie Muniz and Erik Per Sullivan

Season 6 Episode 12Living Will Hal is named executor of his neighbour's living will, and is torn between keeping him on life support or pulling the plug, bringing him to the realisation that Lois usually makes his decisions. Meanwhile, Malcolm and Reese teach Craig to fight dirty

Season 6 Episode 13Tiki Lounge Hal turns the garage into a romantic space where he and Lois can retreat in peace, but they end up arguing about their philosophical beliefs regarding life after death. Malcolm takes part in a charity event, but gets too engrossed in his role

Season 6 Episode 14Ida Loses a Leg Grandma Ida saves Dewey from being run over by a lorry, but badly damages her leg and has to have it amputated. Her grandson is so distressed about the accident that he decides to hold a funeral for the severed limb - but a misunderstanding at the hospital stands in the way of his plans

Season 6 Episode 15Chad's Sleepover Hal forbids Dewey to invite his friend Chad for a sleepover, and the reason behind the ban soon becomes clear. Meanwhile, Malcolm and Reese find they are not as popular as they thought and plot revenge on their classmates

Season 6 Episode 16No Motorcycles Hal goes against Lois's wishes and celebrates Francis's 21st birthday by taking him on a wild motorbike road trip - and confessions start to flow freely with the help of a bottle of vintage whisky. Meanwhile, Malcolm, Dewey and Reese are held captive by a bully

Season 6 Episode 17Butterflies Lois is given the night shift at the shop and forces Malcolm to work it with her, leading him to make an unusual discovery among the aisles. Meanwhile, Reese becomes obsessively attached to a box of caterpillars

Season 6 Episode 18Ida's Dance Malcolm fails a music appreciation course and reluctantly turns to Dewey for help, while Lois and Ida get dressed up in silly outfits for a religious festival. Guest starring Cloris Leachman, with Frankie Muniz and Jane Kaczmarek

Season 6 Episode 19Motivational Speaker It is business as usual in the chaotic Wilkerson household, as Reese has a misadventure in the henhouse, and Dewey pawns his bike and keyboard to get a tattoo across his chest - much to Lois's displeasure. Comedy, starring Justin Berfield and Erik Per Sullivan

Season 6 Episode 20Stilts Hal accidentally calls a premium-rate phone line, which uses up a large part of the family budget - and his efforts to rectify the error only make things worse. Malcolm gets a new job carrying out promotional work as a stilt-walker, and Reese signs up for medical drug tests at a local university

Season 6 Episode 21Buseys Take a Hostage When Hal is encouraged to become president of the Neighbourhood Association he starts to get a little too serious about his new role - much to the annoyance of Malcolm, who comes up with some fun ideas to enliven the community. Meanwhile, Dewey's classmates take their teacher, principal and caretaker hostage

Season 6 Episode 22Mrs Tri-County The boys decide to enter Lois in a beauty pageant as a joke - but plot to help her win after overhearing the other contestants say she does not stand a chance

Season 7 Episode 1Burning Man The Wilkerson boys plan to sneak off to a New Age festival in the hope of seeing naked women, but when their parents find out, the trip becomes a family affair. Malcolm falls for an older woman, while Lois goes topless after discovering the joys of hemp. Guest starring Rosanna Arquette

Season 7 Episode 2Health Insurance Hal forgets to pay his health insurance and as the company will not renew it until the following Monday, the family must last an entire weekend without having any accidents - so he locks the boys in their room to prevent them from getting hurt

Season 7 Episode 3Reese v Stevie Hal catches Dewey smoking a cigarette from his old stash in the garage, and promises to give up caffeine if the boy quits his new habit. Stevie injures Reese after goading him into a fight, and is dumped from a research project as a result

Season 7 Episode 4Halloween Hal is spooked when he discovers the family home was once the scene of a gruesome triple murder, leading him to behave erratically. Lois persuades Reese and Dewey to take Jamie trick-or-treating - with disastrous consequences

Season 7 Episode 5Jessica Stays Over The family looks after the neighbours' teenage daughter Jessica, who gives Malcolm tips on manipulating Lois into letting him drive the car. Reese decides to ship himself to China so he can attack his pen pal, who refuses to apologise for the bombing of Pearl Harbour

Season 7 Episode 6Secret Boyfriend Malcolm is paired with an attractive girl for a science project, and discovers the chemistry of mutual attraction. However, she suggests they keep their relationship secret, making him realise she is embarrassed to be seen with him. Meanwhile, Lois tells Reese to get a new job, and kicks him out of the house until he finds one

Season 7 Episode 7Blackout Hal and Lois decide to celebrate their anniversary by having a steak dinner with the entire family, but a power cut spoils their plans. Meanwhile, Malcolm deceives his parents in an attempt to sneak three attractive Dutch girls into his room

Season 7 Episode 8Army Buddy Reese has a female army friend to stay and reads more into the relationship than she does. Meanwhile, Lois finds a new lease of life while wearing a pair of orthopaedic insoles - but Hal is unimpressed and tries to destroy them

Season 7 Episode 9Malcolm Defends Reese Malcolm comes to Reese's defence after their teacher teases him for being in the same class as his younger brother, and Hal gets into trouble when he tries to give Dewey advice about romance. Meanwhile, Lois believes she has found the perfect babysitter for Jamie - until she starts annoying her. Bryan Cranston stars and directs

Season 7 Episode 10Malcolm's Money Hal and Lois discover Malcolm has received a cheque for $10,000, but decide to keep the money and spend it on themselves. Unfortunately, Dewey overhears their scheming and demands a cut, and before long they have to find a way of paying it all back. Family comedy, starring Frankie Muniz

Season 7 Episode 11Bride of Ida Part one of two. Ida is left in charge when Hal, Lois and Dewey travel to a music competition, and decides her old servant Raduca would be the perfect love match for Reese. However, he takes the idea too far and the pair end up travelling to Las Vegas for an impromptu wedding

Season 7 Episode 12College Recruiters Part two of two. Hal takes over when Malcolm refuses to meet college recruiters and decides to keep their gifts for himself. Reese sets up home in the garage with new bride Raduca, while Dewey persuades Francis to find a job, but just as he leaves for an interview, he is offered a position in his friend's rock group

Season 7 Episode 13Mono Lois comes down with glandular fever and infects Malcolm, resulting in the pair having to spend 24 hours locked in a room together. When their neighbours hear the news, they invite Hal to their parties, knowing his wife is unable to attend. Frankie Muniz and Jane Kaczmarek star

Season 7 Episode 14Hal Grieves Hal learns his father has died, but struggles to grieve and instead vows to be a better parent to his own sons by allowing them to do whatever they like. However, Lois soon puts a stop to his new anything-goes approach. Guest starring George Takei (Star Trek)

Season 7 Episode 15AA Francis's parents pay him a visit to help celebrate his first year of sobriety, but things go awry when he blames Lois for his problems. Meanwhile, after discovering the spare key to Hal's car, the younger boys decide to go on an adventure

Season 7 Episode 16Lois Strikes Back Reese suffers severe humiliation at the hands of three girls at school, so Lois decides to take revenge on his behalf. Meanwhile, Hal stumbles on an idea for making his own baseball-pitching machine out of rubbish from the garage. Comedy, starring Justin Berfield and Jane Kaczmarek

Season 7 Episode 17Hal's Dentist Hal feels betrayed when his dentist and good friend charges him $2,000 to repair his teeth. Reese tries to teach his mother how to ride a bike, while Malcolm and Dewey are surprised when a new mattress appears to fall from the heavens. Comedy, starring Bryan Cranston and Frankie Muniz

Season 7 Episode 18Bomb Shelter Malcolm joins a dance class in the hope of impressing a girl, but soon finds himself part of a competition. Hal believes he may have struck gold when he discovers a subterranean bachelor pad. Comedy, starring Frankie Muniz and Bryan Cranston

Season 7 Episode 19Stevie in the Hospital Malcolm tries to avoid visiting Stevie in the hospital by using a series of bizarre excuses as he struggles to accept the truth about his friend's illness. Family comedy, starring Frankie Muniz and Craig Lamar Traylor

Season 7 Episode 20Cattle Court Reese dreams he is being put on trial for 63,000 counts of animal murder by an assortment of farmyard animals, including a jury of sheep. He is so shocked by the nightmare that he immediately decides to become a vegetarian

Season 7 Episode 21Morp Reese is paid to take the class swot to the school dance, but she forces him to have a makeover and sends him to finishing school. Meanwhile, Malcolm and the unpopular kids form an anti-prom group and stage a protest at the official dance. Justin Berfield and Frankie Muniz star

Season 7 Episode 22Graduation Malcolm's long-awaited graduation from high school prompts a proud Lois to imagine his future - as president of the United States. Final episode.